Hello All,
I'm having an issue that is similar to what I have seen in other other threads, but with some other, odd behavior. Your input would be greatly appreciated.
- Some phones are coming up with no problem.
- Some phones power up and appear to be awaiting a DHCP lease - message on phone "Waiting for LLDP" is displayed until the phone restarts and retries to gain DHCP.
- On the problem phones, their MAC's do not register when the command show lldp neighbors is issued.
- The MAC of the PC connected to the phone dpes register, and the PC gets an IP with normal network access until phone reboots.
- I am relatively new in this environment, and this network has tons of trunks from closets to core switches.
- I am using auto qos.
Here is an example of my switchport configs:
switchport access vlan 50
switchport trunk encapsulation dot1q
switchport trunk native vlan 50
switchport trunk allowed vlan 50,308
switchport mode trunk
switchport voice vlan 308
srr-queue bandwidth share 10 10 60 20
queue-set 2
priority-queue out
mls qos trust cos
auto qos voip trust
spanning-tree portfast
I have not had any luck without the "switchport voice vlan 308" command. I am using DHCP option 242 and 176.
